Chair control unit



FIG. 1 is a top plan view of a chair control unit showing my design.

FIG. 2 is a side view thereof.

FIG. 3 is an underneath view thereof.

FIG. 4 is a back end view thereof.

FIG. 5 is an underneath perspective view thereof.

FIG. 6 is a top perspective view thereof. 

The ornamental design for a chair control unit, substantially as shown. 